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Editorial Team
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Asked: 2026-06-11T06:46:55+00:00

I have an existing git repo for my personal website, which I am porting

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I have an existing git repo for my personal website, which I am porting to Sinatra (mainly for templating, it’s a static site). I do NOT want to lose/reset this git repository.

When I try to push to Heroku, I get the error below. I have a config.ru file, a Gemfile, and a Gemfile.lock, along with some other stuff for Sinatra. Running rackup works, running bundle exec rackup works, and I didn’t get any warnings from Heroku about missing dependencies.

Am I missing something? I can post the directory structure of my site if it would help (though it’s close sourced).

~/Repos/website ➜ gp heroku master
Counting objects: 2836, done.
Compressing objects: 100% (2669/2669), done.
Writing objects: 100% (2836/2836), 3.48 MiB | 252 KiB/s, done.
Total 2836 (delta 481), reused 2117 (delta 155)

-----> Heroku receiving push
 !     Heroku push rejected, no Cedar-supported app detected

To git@heroku.com:APP_NAME_HERE.git
 ! [remote rejected] master -> master (pre-receive hook declined)
error: failed to push some refs to 'git@heroku.com:APP_NAME_HERE.git'
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1 Answer

  1. Editorial Team

    Problem solved. I was working on a git branch especially for Heroku/Sinatra support, and it turns out I was running git push heroku master, which pushed local master to remote master. The master branch did not have a valid Heroku app. I assumed it would push the current local branch to the remote master branch, which is not the case. git push sinatra:master solved the issue.

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